Probability Density

Probability density may refer to:

  • Probability density function in probability theory
  • The product of the probability amplitude with its complex conjugate in quantum mechanics

According to quantum mechanics, these two are the same thing.

Famous quotes containing the word probability:

    “Only in Britain could it be thought a defect to be “too clever by half.” The probability is that too many people are too stupid by three-quarters.”
    —John Major (b. 1943)